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A person of mass 75 kg runs to the top of a building 45 m high in 2 min What is the average power expended?
Wiki User
∙ 14y ago
Work = (force) times (distance) = m g H = (75) (9.8) (45) = 33,075 joules
2 minutes = 120 seconds
Average power = (energy) / (time) = 33,075/120 = 275.625 watts = approx. 0.369 horsepower (rounded)
Wiki User
∙ 14y ago
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